If the electron revolving in the 3rd Bohr’s orbit of Hydrogen species has a radius is R. Then what will be its radius in the 4th orbit in terms of R? 1) (25/9)R 2) (16/9)R 3) (36/9)R 4) (9/16)R
Quora for JEE Mains and NEET: Study Rate Community Latest Questions
Which of the following compounds have colour due to d-d transition? A. KMnO4 B. K2Cr2O7 C. K2CrO4 D. CuSO4.5H2O
Q. Which of the following options contain amphoteric oxide(s) only? i. SnO2 and SiO ii. SiO2 iii. SnO2 and PbO2 iv. CO and SiO
Parul SinglaTeacher
On which of the following factors does the electrical conductivity of an electrolytic cell does not depend? i. Concentration of electrolyte ii. Amount of electrolyte added iii. Temperature iv. Nature of electrode
Q. Which of the following compounds is white in colour? i. ZnSO4 ii. CuSO4 iii. FeSO4 iv. FeCl3
Parul SinglaTeacher
In a simple pendulum of length 10 m, the string is initially kept horizontal and the bob is released. 10% of energy is lost till the bob reaches the lowermost position. Then find the speed of bob at the lowermost ...
BhartiBeginner
Calculate the temperature (in K) at which kinetic energy of mono atomic gaseous molecule is equal to 0.414 ev (a) 3198 K (b) 319.8 K (c) 2500 K (d) 2900 K
During SN1 reaction which of the following statement is correct? (a) Inversion occurs (b) Retention occurs (c) Almost racemization (d) 100% racemization
Which type of linkage is present in nucleotide between base and sugar? (a) Peptide linkage (b) Glycosidic linkage (c) N-Glycosidic linkage (d) Amide linkage
Ethanol shows turbidity with lucas reagent (conc. HCl + anhydrous ZnCl2)? (a) Immediately (b) After 5 to 7 mins (c) Upon heating (d) After 10-12 mins